RE: Is this OK in C++ and C?
> Joe Pfeiffer
> Jari Fredriksson <jarif@iki.fi> writes:
>
> > 31.12.2012 20:33, Zbigniew Komarnicki kirjoitti:
> >> Is this OK or is this a bug, when the wariable 'n' is
> >> initializing by negative value? There no any warning.
> >> Is this normal? I know that value -5 is converted
> >> to unsigned but probably this should by printed a warning,
> >> when this is a constant value. What do you think about this?
> >>
> >>
> >> // prog.cpp
> >> #include <iostream>
> >> using namespace std;
> >>
> >> int main()
> >> {
> >> const unsigned int n = -5;
> >>
> >> cout << "The variable n is: " << n << endl;
> >>
> >> return 0;
> >> }
> >>
> >> Results:
> >> $ g++ -Wall -W prog.cpp -o prog
> >> $ ./prog
> >> The variable n is: 4294967291
> >>
> >> Thank you.
> >>
> >>
> > This is a known bug in Debian GNU/Linux. Happy new year ;)
>
> Where does the standard require a warning in this case? If no warning
> is required, the behavior is not a bug.
>
It is a bug, just not a compiler bug. It is a bug in the user program.
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